Sin Frontera was formed in 2011 by Efrain Yohandy Fuentes Villalonga, better known as YOY (singer, composer and dancer) and Rodyn Alberto Fernandez Martinez (singer, composer, instrumentalist, and producer). It is a Cuban group, resident in Kazakhstan, which has managed to captivate people from different countries with its energy, interpretation and music. Their music is mostly danceable based on the fusion of Caribbean rhythms with other musical genres. the group Throughout its career had different formats and vocalists, who set the standard due to their high professional level.

At the present time, the founders continue with a new musician - Omar Arango Torres (Omar el Ingeniero), who is also a composer, singer and producer.

Due to their stay in Kazakhstan, they have made several collaborations with popular artists of the country by obtaining good acceptance, caused by the unexpected mix of Kazakh music with Latin rhythms and the interpretation, mostly in the local language. as a result, they have monopolized followers, who visit their social networks, performances, concerts, and are always waiting for scoops from a group. What's more, radio interviews, TV shows, presentations,and festivals have been part of the path taken by these talented young people, who do not abandon their dream of continuing to play hearts in every corner of the world and to cross borders with their music.